Cultivator tool



May 13, 1930.

E. cALKlNs ET AL CULTIVATOR TooL v Filed oct. 13, 1927 'TTORNEM Patented May 13, 1930 UNirsn STATES ERNEST CALKIN S kAND ANDREW NIELSEN, OF RIGHTON, COLORADO' v CULTIVATOR, Toon j Application fiied octnber is, i927'.` seriai Nb; 22631369" This invention relates Vto cultivator tools of the kind used on cultivating machines t0 break the soil and cut the weeds between rows of beet plants or other standing crops.

rilools of this character are usually attached in pairs to a transverse bar of the machine to Y cut the soil at opposite sides of rows ot plants by means of slanting blades.

It is anobject ot the invention to provide l' a cultivator tool which throws the upturned dirt back onto the tace of the blade and there` by prevents it being thrown across the plants.

Another object resides in the method of 'associating the blade proper with the shank of the tool, which method has the advantages of presenting a clear and unobstructed working tace, of permitting a ready forward or rearward adjustment of the blade and ot providing for j the adjustment of the angle or y sweep of the blade to any selected degree within determinate limits.

Other objects of` the invention are to be found in details of construction'and a novel arrangement of parts as will fully appear in` the course of the following description madey elevation ot' a cultivatingr machine, showing vline 2 2, Figure l,

a pair or" cultivator tools made in accordance with our invention, in operative position,

Figure 2, a horizontal section taken on the Figure 3, a section along the line 3 3, Figure 2 Figure 4. a face view of the blade ot one of the tools, looking in the direction of the arrow A in Figure 2, and

Figure 5, a partially sectional View similar to Figure 4, showing an adjusted position of the yblade with relation to its shank.

Referring further to the drawings, the Yreterence character 5 designates one of the wheels oil-"a cultivating machine, andi (ithel toolfba-rs j at the front; of' t-lief machine onfwhichthe'f cultivating tools" arefmoiinte'd pairs: @ne pair of t'hetools'is -s'h'owii inI the'view, inthe-ir operative relative j'io'sit-iois andi eachi of the 2"- l tools i's made in:V accordance `wit'li thefpr'esent invention'aswill now-'be described;

e The tool comprises a blade member 7 and a5 shank member 85, the latter heingf'adjustahly andbolts `lO i The Yshank-r member has-at; its lower end,V a f 4laterally projecting toot 112V at?" substantially right`rv angles toE it'sbody pori tion,v andl the toothas al pairof holes' 1B t'o re-l ceive the bolts* 154i by whichI the lo'ladeis'at-I ta'cliedto'theshankl.; i Y j The blade member consists @tia transverse; 1y curved.plate;peintedfatrtsiorwardi sind? as at 1%5 and terminatin'gina ieaTiwan'dlyr'a-gi ing ta-il piece 16. Y Thelupperlportion ofthe" blade 'for-ms aY substantially'horizontal flange 17 for its attachment' t`o"thelfootofthefshank, the flange having a= boltv hole? t18 f' andl4 a" con centric, varcualy slot l191 for the-bolts? 'byfv Wlii cli' the members ofthe tool are connected@v The slot andi the hole? of thel blade' are t'o this end arranged toregister withE the' holes* of` the' shank, Athe slot being "opposit'eltlie'hole ofthe" shank nearesttheend-"of itstootf 1 The bolts '14: are provided' withnutsQQfto clamp the lmember-s together anditiwill be? i parent that whenth'e-i'ifuts are"looseiredgthev5 ging when Vthe weeds between the rows of fore the dirt was thrown across the tail of the cultivator blade and frequently landed on the blade, an inwardly curving delector adapted to throw dirt upturned by the ground portion inthe operation of the cultivato-r, back f onto' the blade, and a' shank-member extending downwardly on the cultivator, and ad justablyconnected eXteriorly of the flangeportion of the blade, for rotary adjustment of,

the blade in a substantially horizontal plane In testimony whereof'we have aixed our signatures. y

l ERNEST CALKINS. ANDREW NIELSEN.

beet plants which'therebyweredamagedand l l covered so as to interferewith theirfurther growthand subsequent harvest, and thepro4 5 i vision of the deflecting shield is therefore an important feature in the construction.

.It is to be observed that by fasteningthe shank .ofthe tool at the top ofthe blade, in-

stead of at the sides` of the,v same, thework- Y ingfaces of thebladevare gclear and unobstructed so that the bladef` may cleave the ground and cut and pass between the-weeds with the minimum of effort andwithout hindrance. v e K.. 1 In `Figure 2 of the ,drawings two rows'of beets are-indicated-lateQQ.l It is to be noted liowreadily the sweeps of the blades may be varied according to the distances between the rows of beets and how close theftool'can Work to the plants without injuring the same.- This feature ktaken together vwith the shields4 21 which prevent the dirt frombeing .throvvn'v onto the plants renders the tools-made in accordancewith the present invention, equiva-V lent in `function and operation and in other respectssuperior to thedisks frequently used in cultivating'machines where it is desired to work close to the standing crops.'A .Y f Y Having thusdescribed our invention, what we Claim anddesire to secure `byLetters Patent isz-Y Y f 1. In a cultivator, a blade pointed in the 'i direction of the operative movement of the cultivatorand transversely curved to provide Y a ground portion and a -flange-portion extending over said ground-portion inwardly with respect ito lthe cultivator, the Vflange-portion having at its end remote from the point of the blade,-an inwardly curving deflector adaptedV to throw dirt upturned by the ground portion in theoperation of the cultivator, back onto the jblade.` and a shank-member 'extending downwardly on' the 'cultivator, f and, attached eXteriorly of .the `flangeeportion of the blade.V

`2. Infa"cultifvator,. a blade pointed in the direction ofzth'e operative movement of the cultivator and transversely curved to provide a groundfpo-rtionand a flange-portion extend? ing overrsaid groundportioninwardly with respect; to the cultivator, the flange-portion having at its end remotelfromthe point-of the 

